719 结果为 '电极丝'
950100011
高性能黄铜涂层带有特殊锌合金的电线-Gamma扩散
950208000
带双伽玛的黄铜涂层线 - β锌扩散
950207002
带锌伽玛的黄铜涂层电线扩散
950207009
950207017
950207023
950207024
950207025
950207027
950207028
950208012
950208013